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A Single-fly Assay for Foraging Behavior in Drosophila
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Published on: November 4, 2013

Insect-foraging in captive owl monkeys (Aotus nancymaae).

Christy K Wolovich1, Jeanette Rivera, Sian Evans

  • 1Department of Biology, University of Miami, Miami, FL, USA. ckwolovich @ gmail.com

Folia Primatologica; International Journal of Primatology
|June 5, 2010
PubMed
Summary

Nocturnal owl monkeys (Aotus spp.) actively hunt insects, with younger and female monkeys attempting captures more frequently than males. This insectivory is crucial for their nutritional needs.

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Area of Science:

  • Primate Behavior
  • Zoology
  • Nutritional Ecology

Background:

  • Nocturnal primates primarily consume insects, but foraging in owl monkeys (Aotus spp.) remains understudied.
  • Insectivory is common in nocturnal prosimians, yet data for platyrrhine nocturnal species is limited.

Purpose of the Study:

  • To describe insect-foraging behavior in captive owl monkeys (Aotus nancymaae).
  • To investigate age and sex differences in insect prey capture success.
  • To explore social dynamics related to insect prey acquisition.

Main Methods:

  • Observation of 35 captive owl monkeys (Aotus nancymaae).
  • Detailed recording of foraging attempts and capture success rates.
  • Analysis of social interactions during prey handling and consumption.

Main Results:

  • Owl monkeys primarily snatch flying insects and immobilize crawling insects using their hands.
  • Immatures and adult females showed significantly more capture attempts than adult males.
  • Capture success rates did not differ between age or sex groups.

Conclusions:

  • Insect foraging is a frequent behavior in owl monkeys, suggesting its importance for their diet.
  • Age and sex influence foraging attempt frequency, potentially related to metabolic demands.
  • Social interactions around insect prey resemble those with other foods, with increased possessor defense.